Multifunctional welding pen
By designing a multi-functional welding pen with multi-position welding needles and elastic connecting components, the problem of fixing the distance and posture of the welding needles has been solved, realizing the flexibility and stability of welding, and improving the welding effect and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-06
AI Technical Summary
Existing welding pens have fixed welding needle distance and posture that cannot be adjusted, and the welding needles are rigidly connected, resulting in poor adaptability and complicated operation.
A multi-functional welding pen was designed, comprising a movable, multi-position welding needle, a flexible connection component, and a pressure adjustment component, which allows for adjustment of the welding needle distance and orientation, and provides stable welding pressure through the flexible connection.
It improves the adaptability and quality of welding, reduces maintenance costs, and enhances the service life of welding needles and operational flexibility.
Smart Images

Figure CN223971095U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of handheld spot welding equipment, and in particular to a multifunctional welding pen. Background Technology
[0002] Electric welding is a welding method that uses electrical energy to achieve atomic bonding of workpieces through heating or pressurization, or both, with or without filler material. Existing electric welding methods mainly include arc welding, resistance welding, high-energy beam welding, and brazing. Resistance welding includes spot welding, butt welding, coating welding, seam welding, and high-frequency welding.
[0003] Welding pens are an important component of welding equipment. Currently, welding machines on the market use two separate welding pens for welding nickel sheets in batteries. Existing welding pens have the following problems: the distance and posture of the welding needles are fixed and cannot be adjusted, making them unsuitable for complex applications; furthermore, the welding needles are often rigidly connected, requiring careful control of the welding force by the operator.
[0004] Therefore, it is necessary to propose a multi-functional soldering pen to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a multifunctional welding pen to solve the technical problems of fixed distance and posture of welding needles, lack of adjustability, and rigid connection of welding needles.
[0006] To achieve the above objectives, this utility model provides a multifunctional soldering pen, including...
[0007] Housing assembly, the housing assembly including a first housing and a second housing;
[0008] A welding assembly, the welding assembly including a conductor movably disposed within a first housing and a second housing, and a multi-position welding pin detachably disposed at one end of the conductor;
[0009] A connecting assembly, the connecting assembly including a connecting seat disposed on the first housing in a direction away from the multi-posture welding pin, a rotating shaft fixed to the connecting seat, and a connecting part disposed on the second housing, the connecting part being rotatably disposed on the rotating shaft;
[0010] A pressure regulating assembly includes an adjusting rod disposed within the housing assembly, a pressure spring, a first abutting part disposed on the conductor and abutting against the pressure spring, a limit switch, and a second abutting part disposed on the conductor and abutting against the limit switch. One end of the pressure spring abuts against the adjusting rod, and the other end abuts against the first abutting part. The portion of the adjusting rod away from the pressure spring is exposed outside the first housing and the second housing.
[0011] Furthermore, the multi-position welding needle includes a first-position welding needle vertically disposed on the conductor, a second-position welding needle horizontally disposed on the conductor, and a third-position welding needle inclinedly disposed on the conductor.
[0012] Furthermore, the connection assembly also includes an elastic connector that connects the first housing and the second housing.
[0013] Furthermore, the connecting assembly also includes a connecting rod connecting the first housing and the second housing.
[0014] Furthermore, the first housing and the second housing are provided with a first limiting groove for placing the conductor.
[0015] Furthermore, a connector for connecting a cable is provided at the end of the conductor away from the multi-position welding pin.
[0016] Furthermore, the housing assembly also includes a gripping portion disposed on the first housing and the second housing in a direction close to the multi-posture welding pin, the gripping portion being streamlined.
[0017] Furthermore, the housing assembly also includes buttons disposed on the first housing and / or the second housing.
[0018] In this application, a multifunctional welding pen includes a housing assembly, a welding assembly, a connecting assembly, and a pressure regulating assembly. The housing assembly includes a first housing and a second housing. The welding assembly includes a conductor disposed within the first and second housings and a multi-position welding needle detachably disposed at one end of the conductor. The pressure regulating assembly includes an adjusting rod, a pressure spring, a first abutment portion on the conductor, a limit switch, and a second abutment portion on the conductor. In use, when the housing assembly is pressed, pressure is transmitted from the multi-position welding needle through the conductor and its first abutment portion to the pressure spring, thus giving the welding needle an elastic connection. The elastically connected welding needle provides the necessary pressure during spot welding, ensuring good contact between the welding point and the base material, thereby guaranteeing welding quality. Furthermore, the welding needle possesses a certain degree of elasticity and wear resistance, maintaining good performance even after multiple uses, reducing replacement frequency and maintenance costs. Additionally, the adjusting rod, partially exposed outside the first and second housings, and the first abutment portion on the conductor abutting against the adjusting rod, enable adjustment of the spring pressure. Since one end of the pressure spring abuts against the adjusting rod and the other end abuts against the first abutting part, pressure can be applied to the pressure spring through the adjusting rod. The magnitude of the pressure applied by the adjusting rod to the pressure spring can change the deformation of the pressure spring. Because the deformation of the pressure spring has a certain range, the deformation that the first abutting part at the other end of the pressure spring can apply to the pressure spring will also be affected. That is, the pressure that the user needs to apply to the welding needle on the conductor will also be affected, thus achieving the purpose of adjustment. Due to differences in base materials and user habits, adjusting the deformation of the pressure spring can adapt to different usage scenarios, thereby improving the welding effect and the service life of the welding needle, and preventing the pressure spring from being too loose or too tight, which would affect the welding effect and the welding needle's life. Furthermore, the multi-position welding needle set on the conductor has multiple postures, which can adapt to more welding scenarios. This utility model has a simple structural design, low cost, and is easy to apply, and can meet the requirements of adjustable welding needle distance and posture, as well as elastic connection. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the multifunctional soldering pen according to an embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of the first housing according to an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the second housing according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the conductor in an embodiment of the present invention;
[0024] Figure 5 This is a schematic diagram of the pressure regulating component according to an embodiment of the present invention;
[0025] Figure 6 This is a diagram showing the usage state of the welding needle in the first posture according to an embodiment of the present invention;
[0026] Figure 7 This is a diagram showing the usage state of the second posture welding needle according to an embodiment of the present invention;
[0027] Figure 8 This is a diagram showing the usage state of the welding needle in the third posture according to an embodiment of the present invention;
[0028] Figure 9 This is a diagram showing the usage state of the multifunctional soldering pen according to an embodiment of this utility model.
[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.
[0030] Explanation of icon numbers:
[0031] 100-Housing assembly, 110-First housing, 120-Second housing, 130-First limiting groove, 140-Second limiting groove, 150-Grip part, 160-Button, 170-Connector;
[0032] 200-Welding component, 210-Conductor, 220-First posture welding pin, 230-Second posture welding pin, 240-Third posture welding pin;
[0033] 300-Connecting assembly, 310-Connecting seat, 320-Connecting part, 330-Rotating shaft, 340-Elastic connector, 350-Connecting rod;
[0034] 400-Pressure regulating assembly, 410 Adjusting rod, 420-Pressure spring, 430-First abutment part, 440-Limit switch, 450-Second abutment part, 460-Limit block;
[0035] 500-Cable. Detailed Implementation
[0036] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0039] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0040] Please refer to the attached document. Figure 1This utility model provides a multifunctional welding pen, including: a housing assembly 100, a welding assembly 200, a connecting assembly 300, and a pressure regulating assembly 400. The housing assembly 100 includes a first housing 110 and a second housing 120; the welding assembly 200 includes a conductor 210 movably disposed within the first housing 110 and the second housing 120, and multi-position welding needles (220, 230, 240) detachably disposed at one end of the conductor 210. As a specific embodiment, the multi-position welding needles include a first-position welding needle 220 vertically disposed on the conductor 210, a second-position welding needle 230 horizontally disposed on the conductor 210, and a third-position welding needle 240 inclinedly disposed on the conductor 210. The vertically disposed first-position welding needle 220 and the inclined third-position welding needle 240 are mainly designed for spot welding needs; the different needle distances of the first-position welding needle 220 and the third-position welding needle 240 can handle different spot welding scenarios. Furthermore, the inclined third-position welding pin 240 allows for adjustment of the distance between the ends of the two welding pins by adjusting the length of the exposed portion of the welding pin. The horizontally positioned second-position welding pin 230 can meet the requirements of butt welding. It should be noted that, in the usage state, the welding pin is one of the first-position welding pin 220, the second-position welding pin 230, or the third-position welding pin 240. In addition, the first housing 110 and the second housing 120 are provided with a first limiting groove 130 for placing the conductor 210. The first limiting groove 130 can restrict the horizontal movement of the conductor 210, thereby ensuring that the conductor 210 always moves in the vertical direction.
[0041] The connecting assembly 300 includes a connecting seat 310 disposed on the first housing 110 away from the multi-posture welding needle, a rotating shaft 330 fixed to the connecting seat 310, and a connecting portion 320 disposed on the second housing 120. The connecting portion 320 is rotatably disposed on the rotating shaft 330. As an optional embodiment, the connecting assembly 300 further includes an elastic connector 340 connecting the first housing 110 and the second housing 120. Specifically, in this embodiment, the elastic connector 340 is a spring, with one end connected to the first housing 110 and the other end connected to the second housing 120. When the second housing 120 rotates relative to the first housing 110 around the rotating shaft 330, the elastic connector 340 can limit the distance of the second housing 120 from the first housing 110, and when the force applied to the second housing 120 is removed, the second housing 120 can automatically return to its original position. It is understood that other elastic elements that can perform a connecting function are also within the scope of protection of this application, such as elastic rubber tubes or elastic rubber strips. Furthermore, the connecting assembly 300 also includes a connecting rod 350 connecting the first housing 110 and the second housing 120. Specifically, in this embodiment, the connecting rod 350 is a threaded rod and is fixed to the first housing 110 and the second housing 120 by a nut. When the first posture welding needle 220 is used, the connecting rod 350 can connect the first housing 110 and the second housing 120 to maintain a fixed posture, thereby facilitating spot welding operations for the user. It is understood that the connecting rod 350 is not limited to the threaded rod given in this embodiment; other connecting rod structures capable of connecting the first housing 110 and the second housing 120 to maintain a fixed posture, such as screws, bolts, pins, rivets, etc., are also acceptable.
[0042] The pressure regulating assembly 400 includes an adjusting rod 410 disposed within the housing assembly 100, a pressure spring 420, a first abutting part 430 disposed on the conductor 210 and abutting against the pressure spring 420, a limit switch 440, and a second abutting part 450 disposed on the conductor 210 and abutting against the limit switch 440. One end of the pressure spring 420 abuts against the adjusting rod 410, and the other end abuts against the first abutting part 430. The end of the adjusting rod 410 away from the pressure spring 420 is exposed outside the first housing 110 and the second housing 120. Further, the first housing 110 and the second housing 120 are provided with a second limiting groove 140 for placing the pressure regulating assembly 400. The pressure regulating assembly 400 also includes a limiting block 460 for fixing the adjusting rod 410. The adjusting rod 410 passes through the limiting block 460, with one end exposed outside the first housing 110 and the second housing 120, and the other end abutting against the pressure spring 420. Specifically, in this embodiment, the adjusting rod 410 is provided with external threads in whole or in part, and the limiting block 460 is provided with internal threads. The limiting block 460 can limit the adjusting rod 410 by connecting the threads.
[0043] In this application, a multifunctional soldering pen includes a housing assembly 100, a soldering assembly 200, a connecting assembly 300, and a pressure regulating assembly 400. The housing assembly 100 includes a first housing 110 and a second housing 120. The soldering assembly 200 includes a conductor 210 disposed within the first housing 110 and the second housing 120, and a multi-position soldering needle detachably disposed at one end of the conductor 210. The pressure regulating assembly 400 includes an adjusting rod 410, a pressure spring 420, a first abutment portion 430 on the conductor 210, a limit switch 440, and a second abutment portion 450 on the conductor 210. In use, when the housing assembly 100 is pressed, pressure is transmitted from the multi-position soldering needle through the conductor 210 and its first abutment portion 430 to the pressure spring 420, thereby giving the soldering needle an elastic connection characteristic. The flexible welding needle provides necessary pressure during spot welding to ensure good contact between the welding point and the base material, thus guaranteeing welding quality. Furthermore, its elasticity and wear resistance allow it to maintain good performance after multiple uses, reducing replacement frequency and maintenance costs. Additionally, the adjusting rod 410, partially exposed outside the first housing 110 and the second housing 120, and the first abutting portion 430 on the conductor 210 that abuts against the adjusting rod 410, allow for adjustment of the spring pressure. Since one end of the pressure spring 420 abuts against the adjusting rod 410 and the other end abuts against the first abutting portion 430, pressure can be applied to the pressure spring 420 via the adjusting rod 410, and the magnitude of this pressure can alter the deformation of the pressure spring 420. Since the deformation of the pressure spring 420 has a certain range, the deformation that the first abutment part 430 at the other end of the pressure spring 420 can apply to the pressure spring 420 will also be affected. That is, the pressure that the user needs to apply to the welding needle on the conductor 210 during use will also be affected, thereby achieving the purpose of adjustment. Due to differences in base materials and user habits, adjusting the deformation of the pressure spring 420 can adapt to different usage scenarios, thereby improving the welding effect and the service life of the welding needle, and preventing the pressure spring 420 from being too loose or too tight, which would affect the welding effect and the service life of the welding needle. Furthermore, the multi-position welding needle provided on the conductor 210 has multiple postures, which can adapt to more welding scenarios. This utility model has a simple structural design, low cost, and is easy to apply, and can meet the requirements of adjustable welding needle distance and posture as well as elastic connection.
[0044] In a preferred embodiment of this invention, the housing assembly 100 further includes a gripping portion 150 disposed on the first housing 110 and the second housing 120 near the multi-position welding pin, the gripping portion 150 being streamlined. Further, the housing assembly 100 also includes a button 160 disposed on the first housing 110 and / or the second housing 120. Specifically, in this embodiment, the button 160 includes a power button 160 and a gear adjustment button 160. Further, a connector 170 for connecting the cable 500 is disposed at the end of the conductor 210 away from the multi-position welding pin; specifically, in this embodiment, the connector 170 is a connecting nut, but other connectors 170 such as terminals or lugs may also be used.
[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A multi-functional soldering pen, characterized by: Comprising a shell assembly comprising a first shell and a second shell; a welding assembly comprising a conductive body movably arranged in the first shell and the second shell, and a multi-attitude welding needle detachably arranged at one end of the conductive body; a connecting assembly comprising a connecting seat arranged on the first shell in a direction away from the multi-attitude welding needle, a rotating shaft fixed on the connecting seat, and a connecting part arranged on the second shell, the connecting part being rotatably arranged on the rotating shaft; a pressure adjusting assembly comprising an adjusting rod arranged in the shell assembly, a pressure spring, a first abutting part arranged on the conductive body and abutting against the pressure spring, a travel switch, and a second abutting part arranged on the conductive body and abutting against the travel switch, one end of the pressure spring abutting against the adjusting rod, and the other end abutting against the first abutting part, one end of the adjusting rod away from the pressure spring being partially exposed outside the first shell and the second shell.
2. The multi-functional soldering pen according to claim 1, wherein The multi-attitude welding needle comprises a first attitude welding needle arranged vertically on the conductive body, a second attitude welding needle arranged horizontally on the conductive body, and a third attitude welding needle arranged obliquely on the conductive body.
3. The multi-functional soldering pen according to claim 1, wherein The connecting assembly further comprises an elastic connecting piece connecting the first shell and the second shell.
4. The multi-functional soldering pen according to claim 1, wherein The connecting assembly further comprises a connecting rod connecting the first shell and the second shell.
5. The multi-functional soldering pen according to any one of claims 1 to 4, characterized by, The first shell and the second shell are provided with a first limiting groove for placing the conductive body.
6. The multi-functional soldering pen according to any one of claims 1 to 4, wherein One end of the conductive body away from the multi-attitude welding needle is provided with a connecting piece for connecting a cable.
7. The multi-functional soldering pen according to any one of claims 1 to 4, wherein The shell assembly further comprises a holding part arranged on the first shell and the second shell in a direction close to the multi-attitude welding needle, the holding part being streamline-shaped.
8. The multi-functional soldering pen according to any one of claims 1 to 4, wherein The shell assembly further comprises a button arranged on the first shell and / or the second shell.